ETHYL METHANESULPHONATE-INDUCED MALE RECOMBINATION AND CHROMOSOMAL ABERRATIONS IN DROSOPHILA MELANOGASTER

Abstract

Ethyl methanesulphonate (EMS)-induced stable chromosomal aberrations did not show a direct association with male recombination in Drosophila although one out of four chromosomal aberrations observed in the TCI larvae overlapped the dp-b region. Highest frequency of male recombination was observed in the dp-b region. No aberrations was observed in TCI larvae decendents and FI larvae larvae of the cross involving female from a homozygous male recombinant line and a male from the complementary stock, or its reciprocal. Thus, involvement of chromosomal aberrations in male recombination in D. melanogaster still remains an open question and warrants further investigation.